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Hooper, Frank H.; Sipple, Thomas S. – 1975
Two experiments which investigated the young child's ability to deal with multiplicative classes and relations (considered behavioral indices of concrete operations thought) in double series and cross class matrices are described and discussed. In the initial study, 160 children from preschool through grade 2 received six matrix subtasks…
Descriptors: Age Differences, Classification, Cognitive Development, Cognitive Processes
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